OFFSET
1,2
COMMENTS
A palindrome is nontrivial if it is of length at least 2.
EXAMPLE
For n = 4 the 10 solutions are 0010, 0011, 0100, 0101, 0110 and their binary complements.
CROSSREFS
KEYWORD
nonn
AUTHOR
Jeffrey Shallit, Jun 06 2019
EXTENSIONS
a(29)-a(40) from Bert Dobbelaere, Jun 15 2019
STATUS
approved